LOAD HISTORY AND STRUCTURE ANALYSIS OF UTILITY VEHICLES

Abstract

Due to statistics 90\% of the damages can be attributed to material fatigue in the scope of mechanical engineering. We can reduce the risk of damage - among others - by adequate dimensioning methods. Which method is applied, the knowledge of the load history is absolutely indispensable. One of the possible analysis of the load history when we set different stress levels, and the numbers are counted, when the load history is crossing these preset values. These numbers are used for lifetime estimation. The authors are suggesting a method for the determination of the expectable values of the stress level crossing numbers.